The only reason Japan allowed Sugihara to assist Jews’ escape ... was to be used as slaves

[wm]

"Protests from Germany" (in March 1938!) is obviously false history, modern mythmaking.

Sugihara's people were mostly Polish Jews and Poles (5 percent) so they were citizens of a friendly nation - they weren't enemy aliens.

[michael mills]

Yes, from the Japanese point of view, Polish citizens, whether Jewish or non-Jewish, were not enemy aliens. But from the German point of view they were, and that is probably what Meisinger was trying to persuade the Japanese authorities to accept. As you wrote, I doubt very much that he would have said to the Japanese, "Exterminate the Jews as we are doing". He probably asked the Japanese authorities to intern all the Jewish refugees in Shanghai, regardless of their nationality, and might well have suggested that they be used for forced labour like allied POWs.